Hello, I am building a probe with an arduino, accelerometer, and an RF transmitter... the probe will we released at a height of 100 meters above the ground and the acceleration of the free falling probe is to be transmitted from the probe via RF transmitter... is it possible to find the acceleration (from Z axis of accelerometer since it is a free fall along Z axis) in the units of meter/second square? If so... How do i convert the milivolts readings of Z axis into acceleration(meter/second square) ?
The data sheet for the accelerometer has information on how to convert the output into internationally accepted units.
It all depends on which accelerometer you have. It should have a document explaining the conversion.
If your object has wings or parachutes or balloons then you will get some readings. Otherwise you will get mostly zeros. You need a 3axis accelerometer, not just one axis.
The accelerometer that i am using is ADXL 335... I couldn't find any such information about conversion in the data sheet :~
standard gravity (symbol: g), defined as 9.80665 metres per second squared
ADXL 335 had typical 300 mV/g
you trying to calculate distance covered it seems?